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Journal articles on the topic 'Adenocarcinoma of Ceruminous'

Author: Grafiati
Published: 3 June 2025
Last updated: 23 June 2025

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1

Amernik, Katarzyna, Aleksandra Kłodawska, and Ewa Jaworowska. "A rare tumor of external auditory canal originated from ceruminous glands: A case raport." Polski Przegląd Otorynolaryngologiczny 7, no. 1 (2018): 1–5. http://dx.doi.org/10.5604/01.3001.0012.1468.

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The external auditory canal neoplasms comprise less than 1 percent of all head and neck tumors. 2,4 percent of them originate from ceruminous glands. In the past all these tumours were called ceruminomas. In 1972 Wetli et al. classiffed these neoplasms into four groups: ceruminous adenomas, ceruminous carcinoma, adenoid cystic carcinomas and pleomorphic adenomas. Ceruminous adenocarcinoma is very rare. It has no specific symptoms, so an appropriate, quick diagnosis is difficult. It is very agressive. The treatment should be based on tumor resection and radiotherapy afterwards. We presented a case of 56 years old female with a mass in external ear canal, who underwent diagnostic surgical excision of external auditor canal tumour. The postoperative histopathological diagnosis was ceruminous adenocarcinoma (complete excision) and the patient received radiation therapy. Control CT and MR - performed one year after the surgery - showed possible local recurrence of pathology. The patient undergo maximal surgical resection with subtotal petrosectomy but in the postoperative histological examination there was no malignant cells. Treatment of neoplasms of external auditory canal should be based on radical surgical resection. Imaging diagnostic is very important in follow up but it can have limited value in term of its specifity.
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2

Moisan, PG, and GL Watson. "Ceruminous gland tumors in dogs and cats: a review of 124 cases." Journal of the American Animal Hospital Association 32, no. 5 (1996): 448–52. http://dx.doi.org/10.5326/15473317-32-5-448.

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The histological features of 124 ceruminous gland tumors from canine and feline biopsy submissions were reviewed. The tissues, which represented submissions from private veterinary practices and a veterinary college, included ceruminous gland adenocarcinomas and adenomas as well as a single, mixed ceruminous gland adenocarcinoma. A majority of the masses from both dogs and cats were identified as malignant processes.
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3

Yang, Chih-Yung, Min-Tsan Shu, and Be-Fong Chen. "Ceruminous Adenocarcinoma." Otology & Neurotology 31, no. 6 (2010): 1011–12. http://dx.doi.org/10.1097/mao.0b013e3181c996d7.

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4

Mansour, P., M. K. George, and A. L. Pahor. "Ceruminous gland tumours: a reappraisal." Journal of Laryngology & Otology 106, no. 8 (1992): 727–32. http://dx.doi.org/10.1017/s0022215100120717.

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AbstractCeruminous glands should no longer be regarded as purely apocrine glands, but as apoeccrine glands with both apocrine and eccrine modes of secretion. We present two cases of pleomorphic adenoma of ceruminous glands, among the rarest of such tumours. The use of such terms as ‘ceruminoma’ and ‘hidradenoma’ should finally be abandoned, and ‘ceruminous gland tumour’ used instead as a generic term. Classification should be based on Wetli's prototype (adenoma, pleomorphic adenoma, adenoid cystic carcinoma and adenocarcinoma), with the addition of benign eccrine cylindroma and syringocystadenoma papilliferum; the inclusion of mucoepidermoid carcinoma should await full validation. Wide local excision is necessary for all tumours, with only follow-up for histologically benign neoplasms. Malignant tumours need early aggressive surgery and radiotherapy. If marginal invasion cannot be assessed histologically, then adenoma and adenocarcinoma cannot be distinguished and we suggest that the tumour be reported as ‘of uncertain malignant potential’. Long-term studies are needed to confirm or refute the view that all ceruminous gland tumours are potentially malignant.
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5

Abelardo, Edgardo, Selwyn Ng, Laysan Pope, and Vinod Prabhu. "Challenges in diagnosing ceruminous adenocarcinoma." BMJ Case Reports 14, no. 5 (2021): e241069. http://dx.doi.org/10.1136/bcr-2020-241069.

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6

Sato, Jun, Makoto HAMAMOTO, Masato HATA, and Tetsuo HIMI. "Ceruminous Adenocarcinoma; A Case Report." Practica Oto-Rhino-Laryngologica 95, no. 12 (2002): 1225–28. http://dx.doi.org/10.5631/jibirin.95.1225.

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7

Singh Virk, Jagdeep, Gaurav Kumar, and Sherif Khalil. "Ceruminous Adenocarcinoma of the Ear." Ear, Nose & Throat Journal 93, no. 4-5 (2014): 146–48. http://dx.doi.org/10.1177/0145561314093004-506.

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8

Stefania, Stucci. "Adenocarcinoma of Ceruminous Glands: Role of the VMAT." Archives of Otolaryngology and Rhinology 2, no. 1 (2016): 009–12. https://doi.org/10.17352/2455-1759.000013.

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Adenocarcinoma of the ceruminous glands is a rare malignancy arising from the glands of the external auditory canal. In most patients it is usually diagnosed as locally advanced disease with a major obstacle for radical surgery. Here, we describe two cases of patients suffering of sudden hearing loss and ipsilateral facial hemiparesis due to tumors arising from the ceruminous glands with primary intracranial involvement and subsequent middle ear infiltration. The patient with localadvanced disease underwent surgery followed by adjuvant treatment, whereas the other patient with advanced disease only to palliative therapy. However, both of them received volumetric-modulated arc radiotherapy (VMAT) resulting in complete remission as adjuvant treatment in the first patients while extending the survival as palliation in the second one. Thus, VMAT appears a suggested approach in this tumor which management is still poorly defined. 
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9

Ravikumar, Arunachalam. "Ceruminous Adenocarcinoma of External Ear Canal." Otolaryngology–Head and Neck Surgery 131, no. 2 (2004): P308. http://dx.doi.org/10.1016/j.otohns.2004.06.686.

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10

Lupisan, Albert Joseph B., and Jose M. Carnate. "Ceruminous Adenoma." Philippine Journal of Otolaryngology-Head and Neck Surgery 29, no. 1 (2014): 35–36. http://dx.doi.org/10.32412/pjohns.v29i1.465.

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A 58-year-old Filipino man with a two-year history of a left external auditory canal mass associated with ipsilateral hearing loss underwent polypectomy for a clinical impression of aural polyp.
 
 We received several cream tan, irregular tissue fragments with an aggregate diameter of 1.4 cm. Histopathologic examination shows clusters of tumor cells forming variably sized ducts and glands, some of which are cystically dilated; many of these structures have irregular lumina. (Figure 1) Higher magnification shows a dual cell population: an outer layer of round to ovoid cells with clear cytoplasm, corresponding to basal myoepithelial cells; and an inner layer of cuboidal to columnar cells, that have eosinophilic and granular cytoplasm with decapitating apical ends, corresponding to luminal epithelial cells with apocrine morphology. (Figure 2) Nuclear pleomorphism is mild to moderate, nucleoli are not prominent, and mitoses, perineural invasion and necrosis are not seen. In some glands a yellow to golden brown, coarse pigment is seen at the cytoplasm of the luminal cells. (Figure 3) The tumor does not involve the epidermis, and there is a variable amount of chronic inflammation. (Figure 4) Based on these features we diagnosed it as ceruminous adenoma.
 
 Ceruminous neoplasms are uncommon tumors found in the external auditory canal. Benign ceruminous tumors include ceruminous adenoma, ceruminous pleomorphic adenoma and ceruminous syringocystadenoma papilliferum.1 Most common among these is the ceruminous adenoma; making up 88% in one thirty-year review of benign ceruminous neoplasms.1 These tumors occur in a wide age range, most commonly in the sixth decade, and have no sex predilection.2 They present as masses in the outer half of the external auditory canal with hearing changes and pain.2 They can be mistaken for aural polyps, especially when there is associated chronic suppurative otitis media.3
 
 Ceruminous adenomas arise from ceruminous glands,4 which are modified sweat glands of the outer one half of the external auditory canal.1 These are well-circumscribed tumors with glandular architecture composed of two populations of cells with apocrine features, as described above. Two microscopic features reinforce the ceruminous nature of the glands: the apocrine morphology and presence of “ceroid” material, which are lipofuscin-like pigment granules seen in the cytoplasm of ceruminous gland luminal cells.1,2 Both are evident in our case. The main differential diagnosis of ceruminous adenoma is a ceruminous adenocarcinoma.1,2,5,6 Marked pleomorphism, brisk mitoses, necrosis, invasion (e.g. perineural), and loss of the two-cell population favor a diagnosis of ceruminous adenocarcinoma, but some well-differentiated cases can be confused with an adenoma. In these cases, sometimes the only clue of malignancy is invasion, especially at the surgical margins.6 Lassaletta et al.5 stressed the importance of adequate tumor excision for a more accurate diagnosis. The presence of a dual cell population and the absence of malignant features led us to a diagnosis of ceruminous adenoma. Immunohistochemical staining for cytokeratin (specifically CK7), which highlight the luminal cells, and for basal/myoepithelial cell markers like CK 5/6, S-100 and p63 may be done to further demonstrate the dual cell population.2 Complete or adequate local excision is the treatment of choice; however, residual tumor often remains because of the difficulty of surgery at this location, leading to recurrence. Subsequent repeat surgery to completely remove the tumor leads to cure.1,2,6
 
 
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11

Mills, Richard G., Tony Douglas-Jones, and R. Gareth Williams. "‘Ceruminoma’ – a defunct diagnosis." Journal of Laryngology & Otology 109, no. 3 (1995): 180–88. http://dx.doi.org/10.1017/s0022215100129652.

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AbstractThe clinical and pathological features of glandular tumours of the external auditory meatus are presented. Their heterogenous clinical and pathological features make the collective term ‘ceruminoma’ ambiguous andmisleading. The spectrum of pathological behaviour and histological features demonstrated by these interesting tumours necessitate a broader classification system. In our hospital 32 patients presented with tumours of the external auditory meatus over a 30-year period, of which seven were glandular in origin. A review of the histology of these glandular tumours enabled us to reclassify them as adenoma, cylindroma, adenoid cystic carcinoma or ceruminous adenocarcinoma. Together with the less common mucoepidermoid carcinoma and pleomorphic adenoma this subdivision forms a basis for a more meaningful classification system with prognostic and therapeutic implications specific to each tumour type. The term ‘ceruminoma’ should no longer be used unqualified.
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12

Thomas, Reeny, and K. Ashok Kumar. "Ceruminous adenocarcinoma with cervical lymph node metastasis." Indian Journal of Otolaryngology and Head and Neck Surgery 48, no. 2 (1996): 135–36. http://dx.doi.org/10.1007/bf03048063.

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13

Tzagaroulakis, Antonios, John Pasxalidis, Nikolaos Papadimitriou, et al. "Recurrent Ceruminous Adenocarcinoma of the External Auditory Canal." ORL 65, no. 5 (2003): 300–302. http://dx.doi.org/10.1159/000075230.

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14

Bilici, Suat, Firat Onur, Ahmet Volkan Sunter, Ozgur Yigit, and Gulben Erdem Huq. "Ceruminous Adenocarcinoma of External Auditory Canal: A Case Report." Journal of International Advanced Otology 12, no. 3 (2016): 341–44. http://dx.doi.org/10.5152/iao.2016.1249.

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15

Jan, Jih-Chuan, Ching-Ping Wang, Po-Cheung Kwan, Shang-Heng Wu, and Hwei-Fan Shu. "Ceruminous Adenocarcinoma With Extensive Parotid, Cervical, and Distant Metastases." Archives of Otolaryngology–Head & Neck Surgery 134, no. 6 (2008): 663. http://dx.doi.org/10.1001/archotol.134.6.663.

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16

Kang, Dong-Hyeon, Dae-Sik Park, Eun-Sung Lee, and Jae-Hoon Kim. "Histopathologic Characterization of Metastatic Ceruminous Gland Adenocarcinoma in a Dog." Journal of Veterinary Clinics 36, no. 5 (2019): 266–70. http://dx.doi.org/10.17555/jvc.2019.10.36.5.266.

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17

Yadav, Geeta, Rajanikant R. Yadav, Riddhi Jaiswal, Satya Prakash Agarwal, and Madhu Mati Goel. "CERUMINOUS ADENOCARCINOMA OF THE EXTERNAL AUDITORY CANAL: A RARE ENTITY." Journal of Evidence Based Medicine and Healthcare 3, no. 52 (2016): 2718–20. http://dx.doi.org/10.18410/jebmh/2016/594.

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18

Soon, Seaver Lee, Martin Bullock, and Mark E. Prince. "Ceruminous Adenocarcinoma: A Rare Tumour of the External Auditory Canal." Journal of Otolaryngology 30, no. 06 (2001): 372. http://dx.doi.org/10.2310/7070.2001.19668.

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19

Hsia, Beau, Darby Keirns, Peter T. Silberstein, and Xinxin Wu. "Ceruminous adenocarcinoma: A National Cancer Database study of demographic characteristics." Journal of Clinical Oncology 41, no. 16_suppl (2023): e18084-e18084. http://dx.doi.org/10.1200/jco.2023.41.16_suppl.e18084.

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e18084 Background: Ceruminous adenocarcinoma (CA) is a rare form of malignancy that originates from the ceruminous glands located in the external auditory canal. Despite its rarity, 25% of CA patients succumb to the disease within two years of diagnosis. Radiation treatment improves the 10-year survival rate to 60%, up from 30% without radiation treatment. Due to the rarity of CA, the diagnostic trend of the disease could offer valuable insight into its epidemiology. The National Cancer Database (NCDB) database was analyzed to determine the demographic factors in patients diagnosed with CA. Methods: A retrospective cohort analysis utilizing the 2004–2020 National Cancer Database (NCDB) included patients with a histologically-confirmed diagnosis of CA (N = 37). Demographic factors (age, sex, race, Hispanic status, educational attainment, insurance status, facility type, distance from facility, and Charles/Deyo score) were analyzed by descriptive statistics and incidence trends were interpreted in regression analysis. Results: A total of 37 patients were identified in the database with a confirmed diagnosis of CA between 2004 – 2020 with a steady incidence of patients diagnosed per year (R2 = 0.0). The average age of diagnosis was 59.7 years (SD = 16.5, range = 14 – 90 years). The top primary site was the external ear (89.2%), although primary sites on other areas of the skin did occur. Most individuals (89.2%) had Charlson/Deyo comorbidity scores of 0. The majority of the patients were Non-Hispanic White (89.1%). More patients were in the top quartile of income earners (35.5.%) compared to those in the second, third, or fourth quartiles. A higher percentage of patients were privately insured (51.4%) than those who were uninsured or insured by Medicare/Medicaid. More patients lived in metropolitan counties with a population greater than 1 million (43.2%) than in other metropolitan counties (35.1%). Fewer patients were treated in an academic/research program (40.5%) than in a non-academic program (46.0%). Patients lived an average of 43.3 miles (SD = 74.7, range = 1.8 – 370) from the treatment facility. No patients received palliative care. Conclusions: This is the first NCDB analysis on CA to the best of our knowledge and thus addresses a significant knowledge gap on the topic. The majority of CA patients tend to be non-Hispanic and White with a primary site diagnosis presenting at the external ear, similar to earlier descriptions in case reports. This is the first time the socioeconomic factors of CA patients have been described in the literature: CA patients are more likely to be in the top income quartile, live in densely-populated metropolitan areas, and be treated in a non-academic program. Further research is needed to better understand the impact of demographic and socioeconomic factors on the diagnosis of, treatments utilized against, and overall survival of patients with CA.
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20

Pratama, Eka Putra, Susilawati, and Wresnindyatsih. "Primary Adenoid Cystic Carcinoma, Subtype of Ceruminous Adenocarcinoma in Right External Auditory Canal: a Case Report." Jurnal RSMH Palembang 2, no. 1 (2021): 106–12. http://dx.doi.org/10.37275/jrp.v2i1.14.

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Background. Ceruminous adenocarcinoma is rare, accounting for less than 2,5% of all external auditory canal neoplasms. The tumours occur in the outer half of the external auditory canal, excluding direct extension from parotid gland. Adenoid cystic carcinoma is the most common subtypes. Adenoid cystic carcinoma needs to be distinguished from its primary origin from the salivary glands and extends to ear, because they share the same histopathology features and immunohistochemistry. Therefore, combinations of clinical features and radiology is needed to diagnose this tumour correctly.Case description. A female patient, 60 years old, admitted to RSMH Palembang with complaint ofyellow discharge coming out from ear. She also havehearing loss and pain since 6 months before admission to the hospital. One week later, the patient develops facial weakness with no mass on face. CT-Scan examination was performed, with the results showed that the mass in right external auditory canal and extends to the mastoid cavity, maxillary sinus wall and brain parenchym. Biopsy was performed in mastoid region and revealed tumour mass with cribriform pattern, few solid pattern, consists of bilayered neoplastic cells with inner luminal and outer abluminal cells. Immunostaining showed CK7 and CD117 positive in luminal cells, p63 positive in abluminal cells, S100 showed positivity in myoepithelial cells.Discussion and conclusion. Based on clinical symptoms, radiology, histopathology, and imunohistochemical staining, the mass in right mastoidis consistent with a ceruminous adenocarcinoma, adenoid cystic carcinoma subtypes, originated from external auditory canal.
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21

Hsia, Beau, Darby Keirns, Peter Silberstein, and Xinxin Wu. "Abstract 4: A SEER Analysis of Demographic Factors Associated With Ceruminous Adenocarcinoma, 2000-2019." Cancer Epidemiology, Biomarkers & Prevention 32, no. 6_Supplement (2023): 4. http://dx.doi.org/10.1158/1538-7755.asgcr23-abstract-4.

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Abstract Purpose: Ceruminous adenocarcinoma (CA) is an uncommon malignancy that arises from the ceruminous glands located in the external auditory canal. Although rare, 25% of patients with CA die of the disease within 2 years of presentation. CA has a 10-year survival rate of 60% with radiation treatment and 30% without radiation treatment. The rarity of this tumor type, combined with a lack of published data, makes it difficult to fully understand its clinical characteristics and optimal management strategies. A study on its epidemiology could offer valuable insight into the diagnostic trend of the disease. The Surveillance Epidemiology and End Results (SEER) database was analyzed to determine the demographic factors in patients diagnosed with CA. Methods: A retrospective cohort analysis utilizing the SEER database from 2000 to 2019 included patients with a confirmed diagnosis of CA (N=45). Cross-tabulation of the demographic factors (age, sex, race, marital status, and Hispanic origin) was analyzed by Pearson’s chi-squared test (p=0.05) and incidence trends were interpreted in regression analysis. Results: There has been a downward trend in incidence rates of patients diagnosed with CA since 2007 (R2=0.139) with an average of 2.25 diagnoses per year. A total of 45 patients were identified in the database with a confirmed diagnosis of CA. The average age of diagnosis was 60.0 years (SD=15.4, range=26–88 years). The top primary site was the external ear (69%), followed by skin of the trunk (8.9%) and skin of the lower limb (6.7%). The majority of the patients were male (53%), non-Spanish-Hispanic-Latino (91%), and White (82%) followed by Black (8.9%), and Asian/Pacific Islanders (6.7%). More patients (40%) were married at the time of diagnosis than those who were widowed (13%), single (9%), or divorced (7%), with the rest having unknown marital status (31%). There were no statistically significant differences between the demographic factors and the primary site at which CA presents. Conclusion: The majority of CA patients tend to be non-Hispanic White males with a declining number of cases each year. Further research is needed to better understand the impact of demographic factors on the diagnosis and overall survival of patients with CA, as well as the reason for the decreased incidence and possible underdiagnosis of the disease. Citation Format: Beau Hsia, Darby Keirns, Peter Silberstein, Xinxin Wu. A SEER Analysis of Demographic Factors Associated With Ceruminous Adenocarcinoma, 2000-2019 [abstract]. In: Proceedings of the 11th Annual Symposium on Global Cancer Research; Closing the Research-to-Implementation Gap; 2023 Apr 4-6. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(6_Suppl):Abstract nr 4.
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22

Kubba, Mahir A. G., Said N. Wafa, and Seham A. Al-Azreg. "Ceruminous gland adenocarcinoma in a domestic Persian-mix cat (Felis catus)." Open Veterinary Journal 8, no. 2 (2018): 168. http://dx.doi.org/10.4314/ovj.v8i2.9.

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23

Ruhl, Douglas S., Anthony M. Tolisano, Tyler P. Swiss, Philip D. Littlefield, and J. Blake Golden. "Ceruminous adenocarcinoma: An analysis of the Surveillance Epidemiology and End Results (SEER) database." American Journal of Otolaryngology 37, no. 2 (2016): 70–73. http://dx.doi.org/10.1016/j.amjoto.2015.11.005.

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24

Pieper, Jason B., Adam W. Stern, Suzette M. LeClerc, and Karen L. Campbell. "Coordinate expression of cytokeratins 7 and 14, vimentin, and Bcl-2 in canine cutaneous epithelial tumors and cysts." Journal of Veterinary Diagnostic Investigation 27, no. 4 (2015): 497–503. http://dx.doi.org/10.1177/1040638715594115.

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Forty-seven canine cutaneous epithelial tumors and cysts were examined to determine coordinate expression of cytokeratins 7 (CK7) and 14 (CK14), vimentin, and Bcl-2 using commercially available antibodies. Within non-affected normal skin adjacent to tumors or cysts, CK7 expression was observed in luminal cells in apocrine glands; CK14 expression was observed in the stratum basale, stratum spinosum, stratum granulosum, basal layer of outer root sheath, sebaceous glands, and myoepithelial cells of apocrine glands; vimentin expression was observed in dermal papilla and scattered non-epithelial cells within the epidermis; and Bcl-2 expression was observed in scattered non-epithelial cells in the epidermis and some apocrine glands. The pattern of expression of CK7 and CK14 in cases of adenocarcinoma of the apocrine gland of the anal sac (CK7+/CK14–) and hepatoid gland tumors (CK7–/CK14+) may prove useful for diagnostic purposes. Loss of expression of CK14 and vimentin, identifying myoepithelial cells, was observed in apocrine and ceruminous adenocarcinomas. Differences in patterns of expression of Bcl-2 were observed between infundibular keratinizing acanthomas compared to trichoepitheliomas.
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Drew, S. J., D. Perpiñán, and J. Baily. "Concurrent Transitional Meningioma and Ceruminous Gland Adenocarcinoma in a Scottish Wildcat Hybrid (Felis silvestris)." Journal of Comparative Pathology 154, no. 2-3 (2016): 253–57. http://dx.doi.org/10.1016/j.jcpa.2015.11.005.

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26

Skärlina, E. M., H. W. Tvedten, V. L. H. Roberts, and D. A. Gorvy. "Resection of a ceruminous adenocarcinoma in a horse by a modified vertical ear canal ablation." Equine Veterinary Education 27, no. 9 (2015): 462–66. http://dx.doi.org/10.1111/eve.12421.

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27

Kim, Chang Woo, Young-Soo Rho, Seong Jin Cho, Chul Hee Lee, and Woo Jin Bae. "A case of ceruminous adenocarcinoma of the external auditory canal presenting as an aural polyp." American Journal of Otolaryngology 29, no. 3 (2008): 205–8. http://dx.doi.org/10.1016/j.amjoto.2007.05.003.

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28

Daikhes, N. A., Kh M. Diab, V. V. Vinogradov, et al. "A CASE OF MULTIDISCIPLINARY INTERACTION FOR TREATMENT OF PATIENT WITH CERUMINOUS ADENOCARCINOMA OF THE EXTERNAL AUDITORY CANAL." Russian Otorhinolaryngology 85, no. 6 (2016): 114–17. http://dx.doi.org/10.18692/1810-4800-2016-6-114-117.

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Fox-Alvarez, William Alexander, Alexis R. Moreno, and Jamie Bush. "Diagnosis and Successful Surgical Removal of an Aural Ceruminous Gland Adenocarcinoma in a Domestic Ferret (Mustela putorius furo)." Journal of Exotic Pet Medicine 24, no. 3 (2015): 350–55. http://dx.doi.org/10.1053/j.jepm.2015.06.010.

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30

Sarangi, Sujata, VanditaYogendra Singh, and Krati Agrawal. "Ceruminous adenocarcinoma of the external auditory canal- report of a rare case with a discussion of its differential diagnoses." Indian Journal of Pathology and Microbiology 64, no. 2 (2021): 424. http://dx.doi.org/10.4103/ijpm.ijpm_326_20.

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31

London, Cheryl A., Richard R. Dubilzeig, David M. Vail, et al. "Evaluation of dogs and cats with tumors of the ear canal: 145 cases (1978-1992)." Journal of the American Veterinary Medical Association 208, no. 9 (1996): 1413–18. http://dx.doi.org/10.2460/javma.1996.208.09.1413.

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Objective To characterize the frequency, clinical signs, biologic behavior, and response to treatment of tumors of the ear canal in dogs and cats. Design Retrospective analysis of medical records. Animals Medical records of 81 dogs (48 malignant tumors, 33 benign tumors) and 64 cats (56 malignant tumors, 8 benign tumors). Procedure Data were analyzed for cats and dogs with malignant tumors, and risk factors were analyzed for their potential impact on survival time. Results Malignant tumor types most commonly reported included ceruminous gland adenocarcinoma, squamous cell carcinoma, and carcinoma of undetermined origin. Median survival time of dogs with malignant aural tumors was > 58 months, whereas that of cats was 11.7 months. A poor prognosis was indicated by extensive tumor involvement (dogs) and by neurologic signs at time of diagnosis, diagnosis of squamous cell carcinoma or carcinoma of undetermined origin, and invasion into lymphatics or blood vessels (cats). Clinical Implications Malignant tumors of the ear canal in dogs and cats have a propensity for local invasion, but tend not to metastasize. Squamous cell carcinoma and carcinoma of undetermined origin were the most locally aggressive tumors. Malignant tumors of the ear canal are best managed by aggressive surgical excision. Radiotherapy may be useful when tumors cannot be completely removed. (J Am Vet Med Assoc 1996;208:1413-1418)
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32

CASTRO, MÍRIAM C. M. DE, WALTER JOSÉ FAGUNDES-PEREYRA, LAURO N. OLIVEIRA FILHO, CARLOS ALBERTO R. GUAXUPÉ, NICODEMOS ALVES DE SOUSA, and ATOS ALVES DE SOUSA. "Tumor de glândula ceruminosa com invasão intracraniana: relato de caso." Arquivos de Neuro-Psiquiatria 58, no. 2A (2000): 324–29. http://dx.doi.org/10.1590/s0004-282x2000000200020.

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As glândulas ceruminosas são glândulas apócrinas modificadas encontradas na região profunda da derme que reveste a porção cartilaginosa do meato acústico externo. Os tumores originados dessas glândulas são raros. Existem controvérsias em relação ao termo ceruminoma, que nos parece impróprio. Na verdade, esses tumores são atualmente classificados como adenoma, adenocarcinoma, carcinoma adenóide cístico e adenoma pleomórfico. Relatamos o caso de uma mulher de 39 anos, apresentado-se com cefaléia, hipoacusia e zumbidos à direita, além de vertigem e náuseas. A TC de crânio evidenciou tumoração do ouvido médio, invadindo os limites ósseos e cartilaginosos, com extensão intracraniana. Foi submetida a cirurgia, com exérese parcial do tumor, seguida de radioterapia (6000 cG). A histologia mostrou tratar-se de carcinoma adenóide cístico de glândulas ceruminosas. A paciente apresentou no pós-operatório paralisia facial periférica à direita, mantendo os déficits anteriores. Após um ano da cirurgia encontra-se estável clinicamente.
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Beltrán-Henríquez, Juanita María, Johanna Ximena Valderrama-Penagos, Leonardo Elías Ordóñez-Ordóñez, and Ximena Cortes. "Adenocarcinoma de glándulas ceruminosa: reporte de un caso." ACTA DE OTORRINOLARINGOLOGÍA & CIRUGÍA DE CABEZA Y CUELLO 51, no. 1 (2023): 72–76. http://dx.doi.org/10.37076/acorl.v51i1.658.

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El adenocarcinoma de glándula ceruminosa es una neoplasia poco frecuente del conductoauditivo externo; en la literatura se ha descrito únicamente a través de reportesde caso, por lo que no se dispone de consensos ni guías de manejo. Presentamos elcaso de un paciente masculino de 57 años que presenta adenocarcinoma de glándula ceruminosa confirmado por inmunohistoquímica. El tratamiento se basó en el manejo quirúrgico con resección ampliada de la lesión, con lo cual se obtuvieron bordes negativos durante el procedimiento y la consecuente reconstrucción de piel con colgajoen el mismo tiempo quirúrgico.
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34

Molina Díaz, Víctor Manuel. "Adenocarcinoma de glándulas ceruminosas en un canino: reporte de caso." Revista de Medicina Veterinaria 1, no. 37 (2019): 95–102. http://dx.doi.org/10.19052/mv.vol1.iss37.11.

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El adenocarcinoma de las glándulas ceruminosas es una neoplasia maligna del conducto auditivo externo en la especie canina, descrito en razas como pastor alemán y cocker spaniel. Es menos frecuente que los tumores benignos y presenta baja tasa de metástasis. Puede estar relacionado con la presencia de otitis crónica. Se describe el caso clínico de un canino poodle de ocho años, procedente de la zona aurífera de El Bagre, Colombia, con historia de exposición a vapores de mercurio, la presencia de un nódulo en el conducto auditivo externo, diagnóstico histopatológico de adenocarcinoma de las glándulas ceruminosas y su correlación con la exposición a mercurio. El paciente presentó cuadro de otitis crónica que fue tratada con gentamicina, polimixina B y betametasona, sin evolución positiva. Fue detectada una estructura nodular de un centímetro de diámetro en la porción ventral del conducto auditivo externo del oído izquierdo, con otitis externa secundaria por Staphylococcus aureus. La masa fue extirpada y enviada a histopatología y fue reportado un adenocarcinoma de las glándulas ceruminosas. No fue realizada terapia antineoplásica, pero el paciente evolucionó positivamente a la extracción quirúrgica, sin recidivas durante 24 meses.
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35

Yamada, Shigeo, Suguru Kayama, Masahumi Tokuda, Yuko Tatsuno, and Masamine Aiuchi. "Bilateral and Symmetrical Ceruminous Adenocarcinomas in a Young Cat." Japanese Journal of Veterinary Dermatology 18, no. 2 (2012): 99–102. http://dx.doi.org/10.2736/jjvd.18.99.

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36

Headley, S. A., T. B. Saito, C. M. Bettini, and A. L. Tomita. "Ocorrência simultânea de adenocarcinoma das glândulas ceruminosas e otite externa em um cão." Brazilian Journal of Veterinary Research and Animal Science 40 (October 18, 2003): 223. http://dx.doi.org/10.11606/issn.2318-3659.v40isupl.p223-223.

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37

Wada, Kento, Takeshi Tsuda, Yukiko Hanada, Kiyoshi Mori, and Hiroshi Nishimura. "A Case of Ceruminous Adenocarcinoma Not Otherwise Specified (NOS) in the External Auditory Canal." Ear, Nose & Throat Journal, August 30, 2020, 014556132095412. http://dx.doi.org/10.1177/0145561320954128.

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External auditory canal cancer is a rare disease which can be treated by surgery or chemoradiation. The most common histological type is squamous cell carcinoma, but rare types such as adenocarcinoma have been reported and are thought to be derived from the ceruminous glands. Here, we present a case of ceruminous adenocarcinoma, not otherwise specified (NOS) in the external auditory canal. A 72-year-old woman was referred to our department with discomfort due to a mass in the external ear canal. No typical symptoms of malignancy, such as pain or bleeding, were noted at the initial examination. The patient underwent a total excision under local anesthesia as a diagnostic treatment. She was diagnosed with ceruminous adenocarcinoma, NOS based on the results of immunostaining of the excised specimen, and is currently being followed up as an outpatient. Adenocarcinoma is thought to originate from the cerumen glands of the ear canal and the lack of specific symptoms may make it difficult to differentiate it from benign tumors. Although adenocarcinoma, NOS has been reported in the head and neck region, there have been no reported cases occurring in the external ear canal, and to the best of our knowledge, this is the first report.
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Becker, Joachim Aidt, and Søren Foghsgaard. "Malignant tumour from a ceruminous adenoma in the ear canal." Ugeskrift for Læger, January 20, 2025, 1–3. https://doi.org/10.61409/v10240715.

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In this case report, a 77-year-old man presented in 2016 with a tumour in the ear canal. A biopsy revealed a benign ceruminous adenoma, which was surgically removed. The tumour recurred in 2019 and 2022, with each recurrence surgically removed and confirmed as benign. In December 2023, the patient developed facial paralysis and diagnostic imaging showed an infiltrating tumour. A biopsy revealed an exceedingly rare malignant ceruminous adenocarcinoma. The tumour was deemed inoperable and the patient was referred to radiotherapy. Prior biopsies were re-evaluated and were shown to be identical to the 2023 malignancy.
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39

Stucci, S. "Adenocarcinoma of Ceruminous Glands: Role of the VMAT." Archives of Otolaryngology and Rhinology, February 22, 2016, 009–12. http://dx.doi.org/10.17352/2455-1759.000013.

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40

Garzotto, Caroline K., Jane D. Jones, Fernando Castro, Kaikushroo H. Banajee, and Jessica Villarreal. "Total ear canal ablation and lateral bulla osteotomy in a ferret for the treatment of aural ceruminous gland neoplasia." Veterinary Record Case Reports, February 10, 2025. https://doi.org/10.1002/vrc2.70003.

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AbstractA 6‐year‐old, male, neutered domestic ferret (Mustela putorius furo) presented for mucopurulent discharge from the left ear with visible intraluminal soft tissue mass in the vertical portion of the canal on endoscopic exam. A computed tomographic exam confirmed a mass confined to the lumen of the left ear canal. A total ear canal ablation and lateral bulla osteotomy was performed. Initial histopathology diagnosed the mass as a ceruminous gland adenoma, and the ferret lived with excellent quality of life for 6 months. After 6 months, swelling around the left total ear canal ablation and lateral bulla osteotomy site was noted by the owner. Cytology of the swelling was consistent with an adenocarcinoma. This case report describes a total ear canal ablation and lateral bulla osteotomy surgery in a ferret. Total ear canal ablation and lateral bulla osteotomy was well tolerated in this patient with no long‐term complications. Aural ceruminous gland tumours in ferrets may exhibit variable behaviour and should be given a guarded prognosis.
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S, Bilici, Yigit O, and Sunter AV. "A New Treatment Option for Ceruminous Adenocarcinoma of External Auditory Canal." Journal of Otology & Rhinology 06, no. 03 (2017). http://dx.doi.org/10.4172/2324-8785.1000314.

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42

Mocanu, Jacqueline, Andrei Tanase, Teodora Gardan, Cerasella Vasilescu, Anca Cucos, and Bianca Bofan. "Surgical Ablation of Canal Ear in a Dog with Ceruminous Adenocarcinoma Ear Tumor." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Veterinary Medicine 73, no. 1 (2016). http://dx.doi.org/10.15835/buasvmcn-vm:11550.

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43

Lan, Zhihua, Jianping Li, and Fang Yang. "Cytological features of metastatic ceruminous adenocarcinoma (not otherwise specified) in pleural effusion: A case report." Cytopathology, December 14, 2020. http://dx.doi.org/10.1111/cyt.12939.

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44

Bertram, C. A., R. Klopfleisch, and K. Müller. "Complex ceruminous gland adenocarcinoma of the external ear canal in a Guinea pig ( Cavia porcellus )." Journal of Small Animal Practice, March 18, 2019. http://dx.doi.org/10.1111/jsap.12995.

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Urbiola Marcilla, E. "Adenocarcinoma ceruminoso: a propósito de un caso." Revista de Medicina de la Universidad de Navarra, March 24, 2017, 135–37. http://dx.doi.org/10.15581/021.7359.

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Se presenta un caso de Adenocarcinoma ceruminoso ("ceruminoma") localizado en conducto auditivo externo izquierdo en una mujer de 55 años. El patrón histológico, bien diferenciado, contrasta con la marcada agresividad clínica del proceso, que hace prever un mal pronóstico a pesar del tratamiento instaurado.
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46

Arslan, Esra, Göksel Alçın, Özge Erol, Ediz Beyhan, Burcu Güzelbey, and Tevfik Fikret Çermik. "An uncommon and aggressive presentation of ceruminous adenocarcinoma of external auditory canal detected with 18F-FDG PET/CT." Revista Española de Medicina Nuclear e Imagen Molecular (English Edition), May 2021. http://dx.doi.org/10.1016/j.remnie.2021.05.006.

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47

McGrath, Alysha M., Carolyn L. Chen, Brittany Abrams, et al. "Clinical presentation and outcome in cats with aural squamous cell carcinoma: a review of 25 cases (2010–2021)." Journal of Feline Medicine and Surgery, September 6, 2022, 1098612X2211191. http://dx.doi.org/10.1177/1098612x221119144.

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Case series summary Ear canal neoplasia is uncommon in cats. Ceruminous gland adenocarcinoma is the most frequently reported malignant neoplasm of the feline ear canal, and squamous cell carcinoma (SCC) is the most common malignant neoplasm diagnosed in the feline middle ear. However, limited information exists on the outcome of cats diagnosed with SCC of the ear canal, middle or inner ear. Therefore, the objective of this study was to describe the outcome of cats diagnosed with SCC affecting these locations. Medical records were reviewed at multiple institutions to identify cats with a definitive diagnosis of SCC. Twenty-five cats were identified. Eleven cats were treated with surgery, eight with medical management, two with coarse fractionated radiation therapy, two with a combination of coarse fractionated radiation therapy and chemotherapy, one with a combination of surgery and coarse fractionated radiation therapy, one cat with systemic chemotherapy and one cat received no treatment following diagnosis. The median survival time of cats treated with surgery was 168 days vs 85 days ( P = 0.28) for those treated palliatively with either medical management, radiation therapy, chemotherapy, or a combination of radiation therapy and chemotherapy. Relevance and novel information This case series documented that SCC of the ear canal, middle and/or internal ear is a locally aggressive tumor that carries an overall poor prognosis. The median survival time for cats treated with surgery was longer than that with any other modality, but this difference was not statistically significant.
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Loft, Klaus E., Julie Soohoo, Brooke Simon, and Christian E. Lange. "Feline cystadenomatosis affecting the ears and skin of 57 cats (2011–2019)." Journal of Feline Medicine and Surgery, July 13, 2021, 1098612X2110244. http://dx.doi.org/10.1177/1098612x211024498.

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Objectives This study aimed to understand epidemiological factors associated with feline cystadenomatosis, including signalment and papillomavirus PCR status. Cystadenomatosis is an uncommon condition primarily involving the ceruminous and apocrine skin and ear glands. Methods This was a retrospective case series. Clinical records from 2011 to 2019 from a tertiary referral hospital in Boston, MA, USA were screened for cases, and case data were re-evaluated and analyzed. The total patient pool contained 65,385 individual cats, of which 797 were referred to the dermatology service. Medical records and biopsy specimens were reviewed; the information collected included signalment, clinical signs, physical examination and diagnostic tests, comorbidities and histopathologic findings. PCR was performed on biopsy specimens to test for papillomavirus DNA. Results The cystadenomatosis population consisted of 57 cases (7.1% of total cases referred to the dermatology service) with 105 affected ears. Twenty-seven cases (48 ears) were confirmed via histopathology; four cats (7%) exhibited clinically cystic lesions on the periocular, periorbital and perianal regions; only one cat did not have pinnal lesions. Domestic shorthair cats were most often affected. Relative risk for cystadenomatosis was 2.24 times higher in male cats. In 48 cats (84.2%), ears were bilaterally affected. Seven cats (12.3%) had malignant neoplasia, which included: inflamed adenocarcinoma (n = 5); mast cell tumor (n = 1); or squamous cell carcinoma (n = 1). PCR testing on biopsy specimens from 24 cats revealed feline papillomavirus type 2 DNA in only four cats. Conclusions and relevance Cystadenomatosis was more prevalent in senior non-purebred cats, over-represented in male cats and did not appear to be associated with papillomavirus, feline infectious peritonitis, feline immunodeficiency virus/feline leukemia virus status or other identifiable illnesses. Further studies are needed to investigate the causes of cystadenomatosis.
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Athanasopoulos, Michael, Anastasios Goulioumis, and Ioannis Athanasopoulos. "Malignant tumors of the external auditory canal: diagnosis, treatment, genetic landscape, biomarkers, and clinical outcome." Exploration of Targeted Anti-tumor Therapy, September 21, 2023, 801–11. http://dx.doi.org/10.37349/etat.2023.00169.

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Malignant tumors of the external auditory canal (EAC) are rare neoplasms that appear in the head and neck area. A common feature of these malignancies is their rarity, as well as their delayed diagnosis due to the appearance of non-specific symptoms that mimic various benign otologic conditions. The reported histological types of cancer of the external ear are: squamous cell carcinoma, basal cell carcinoma, malignant melanoma, Merkel cell carcinoma, angiosarcoma, adnexal carcinoma (including ceruminous adenocarcinoma and adenoid cystic carcinoma), and lymphoma (Lancet Oncol. 2005;6:411–20. doi: 10.1016/S1470-2045(05)70208-4). Several therapeutic interventions have been proposed, primarily orientated towards the cure of the patient, placing the surgical excision of the lesions at the tip of the spear. Subsequently and depending on the clinical stage and the pathological characteristics of the tumor, radiation, chemotherapy, a combination thereof, or some form of palliative treatment for particularly advanced cases, may be recommended. The aim of all the above-mentioned approaches is the complete resection of the mass with negative surgical margins along with lymph node dissection, the elimination of any residual disease or metastasis, and the improvement of survival. The anatomical complexity of the region will always remain a demanding challenge. Nevertheless, advances in the fields of ear microsurgery, imaging, radiation, molecular biology, and genomics have led to remarkable outcomes compared to the past, with a view to the patient’s quality of life. Large, well-organized, and prospective studies with the participation of multiple centers in contrast to existing retrospective studies with a limited number of patients will help to establish universally accepted guidelines. The exploration of the molecular and genetic background of these cancers in conjunction with the search for new biomarkers and target molecules seems promising for providing upgraded and more personalized treatment modalities for the future.
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Pieper, Jason B., James O. Noxon, and Darren J. Berger. "Retrospective evaluation of ceruminous gland tumors confined to the external ear canal of dogs and cats treated with biopsy and CO2 laser ablation." Journal of Veterinary Internal Medicine, September 20, 2023. http://dx.doi.org/10.1111/jvim.16873.

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AbstractBackgroundTreatments currently available for ceruminous gland tumors include surgery and radiation therapy, which come with high financial costs and frequent complication and recurrence rates.HypothesisTo evaluate the treatment, response, complication, and recurrence of ceruminous gland tumors confirmed with biopsy and ablated using CO2 laser.MethodsRetrospective review of medical records from Iowa State University and the University of Illinois between January 1, 2016 and December 31, 2021. Electronic medical records were evaluated for a histopathologically confirmed ceruminous gland tumor via video‐otoscopic aided biopsy and subsequent CO2 laser ablation. Signalment, tumor type, size, location within the ear canal, length of time tumor was present before presentation, advanced imaging, and follow‐up including recurrence were assessed.ResultsFourteen ceruminous gland adenomas (4 dogs, 10 cats) and 12 ceruminous gland adenocarcinomas (7 dogs, 5 cats) were identified. Bacterial otitis externa was present in 4/26 (15%) animals. Recurrence was identified in 1/14 (7%) ceruminous gland adenomas and 1/12 (8%) ceruminous gland adenocarcinomas.Conclusions and Clinical ImportanceVideo‐otoscopic aided biopsy and CO2 laser ablation of ceruminous gland tumors in dogs and cats is a viable treatment option with low recurrence and complication rates with CO2 laser ablation.
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